In 2016, Troelsen co-wrote "I Love Me" by Meghan Trainor and This One's For You by David Guetta featuring Zara Larsson, the UEFA 2016 official song.

In 2015, Troelsen co-wrote 3 songs for the new Flo Rida EP My House, including the single "I Don't Like It, I Love It" featuring Robin Thicke. He also co-wrote the song "Company" by Justin Bieber from his album Purpose, "Back in the Old School" for Chic featuring Nile Rodgers, and the single "Heatwave" for Robin Schulz featuring Akon.

In 2014, Troelsen co-wrote and co-produced “We Are One (Ole Ola),” the Official 2014 FIFA World Cup Song, featuring Pitbull, Jennifer Lopez, and Claudia Leitte. The song was performed by Pitbull and Jennifer Lopez at the Opening Ceremony of the 2014 World Cup and was included on the “Official 2014 FIFA World Cup Album," released by Sony.[2]

In Asia, Troelsen is regarded as one of the most successful and prolific writers and producers of K-Pop. Troelsen’s compositions have sold over 10 million units in Korean and Japan to date. Troelsen wrote TVXQ's single "Mirotic", whose eponymous album was the best-selling album of 2008 in South Korea. Other major K-Pop songs written and produced by Troelsen include SHINee's "Love Like Oxygen", EXO's "History," and TVXQ's "Humanoids."